> ## Documentation Index > Fetch the complete documentation index at: https://docs.busha.io/llms.txt > Use this file to discover all available pages before exploring further. # Get a customer by ID > Retrieve a specific customer by their unique ID ## OpenAPI ````yaml https://raw.githubusercontent.com/bushaHQ/openapi/refs/heads/main/openapi-spec.yaml get /v1/customers/{id} openapi: 3.0.0 info: title: Busha API contact: email: developers@busha.co description: > ## Introduction The **Busha API** is designed to provide businesses with tools for borderless financial transactions and operations, enabling modern, global money management. It serves as the backbone for facilitating: - Creation and management of multi-currency balances - Retrieval of real-time cryptocurrency rates - Substantial data insights for business owners Whether you’re a product-driven fintech or a developer building integrations, this API significantly accelerates implementation while reducing financial complexities. For detailed guides on API integration, visit our [official documentation](). ## Authentication All API requests require a **Bearer Token** for authentication, passed in the `Authorization` header. Your authorization value is a base64 encoded value of your api key and your secret key. You can obtain API tokens via your Busha user or business account. Authentication is mandatory to ensure secure and authorized interactions with the API. The API keys from the dashboard provides a base64 encoding of the your authorization tokens. Your generated Key should look like this: `VURtNXhWcHueantkpaiewjo0S044MWsadfojienuoxRTiWDJaeWJaTGxxanZ3Ym10OU1RZnVWajVW=` Example Header: ``` curl Authorization: Bearer VURtNXhWcHueantkpaiewjo0S044MWsadfojienuoxRTiWDJaeWJaTGxxanZ3Ym10OU1RZnVWajVW= ``` ## Error Handling #Standardized error responses ensure predictable interactions. Errors are detailed for easy debugging and understanding: | **Error Code** | **HTTP Status Code** | **Description** | | --- | --- | --- | | `bad_request` | 400 | Invalid input or malformed request | | `unauthorized` | 401 | Invalid or missing authentication | | `not_found` | 404 | Resource not found | | `service_unavailable` | 503 | Server error | Basic Error Example: ``` json { "error": { "name": "bad_request", "message": "Invalid input data" } } ``` Schema Error Body Example: ``` json { "error": { "name": "bad_request", "message": "Invalid input data" }, "schema": { "reason": "The request body is defined as an object. However, it does not meet the schema requirements of the specification", "fix": "Ensure that the object being submitted, matches the schema correctly" } } ``` Field Error Body Example: ``` json { "error": { "name": "bad_request", "message": "Invalid input data" }, "fields": { "field1": [ { "reason": "The request body is defined as an object. However, it does not meet the schema requirements of the specification", }, ], "field2": [ { "reason": "The request body is defined as an object. However, it does not meet the schema requirements of the specification", } ], } } ``` ## Pagination Pagination uses cursors provided as: The API supports **cursor-based pagination** for endpoints with large datasets. Pagination uses a `next_cursor` and `previous_cursor` returned in the response. Example Response Format: ``` json { "current_entries_size": 10, "next_cursor": "base64_cursor_value", "previous_cursor": "base64_previous_cursor_value" } ``` ## Rate Limiting Rate limits determine how many API calls can be made in a rolling minute. This ensures fair and optimized use of system resources. The rate limits allowed by each resource will be provided with the header: ```curl x-rate-limit 100 ``` If this header does not exist, then the rate limit is set at a default 100 req/min Requests exceeding the allocated quota will receive a `429 Too Many Requests` response. ## Common Parameters Common parameters enhance consistency across endpoints: | **Parameter Name** | **Location** | **Description** | **Example** | | --- | --- | --- | --- | | `X-BU-PROFILE-ID` | Header | User profile identifier | `BUS_qwejinoiuiqw93ejjw` | | `id` | Path | Unique NanoID identifier | `dpt_jweqafajsndiun34fd` | | `cursor` | Query | Pagination cursor | `base64_cursor_string` | #### Paginated Response Example ``` json { "status": "success", "message": "Data retrieved", "pagination": { "next_cursor": "value_for_next_page", "current_entries_size": 20 }, "data": [...] } ``` version: 1.0.0 servers: - url: https://api.sandbox.busha.so description: Sandbox Environment - url: https://api.busha.io description: Production Environment security: [] tags: - name: Balances description: Handles account balances across different currencies. x-displayName: Balances - name: Bills description: Lorem Ipsum x-displayName: Bills - name: Cards description: Lorem Ipsum x-displayName: Cards - name: Cashback description: Main tag for cashback service endpoints x-displayName: Cashback - name: Currencies description: > Endpoints to manage supported currencies, their properties, and network details. x-displayName: Currencies - name: Customers x-internal: false description: Handle customer requests and responses x-displayName: Customers - name: Files description: Provides APIs to handle files upload x-displayName: Files - name: Mandate x-displayName: Mandate - name: Miscellaneous description: Provides auxiliary APIs to complement and enhance other services. x-displayName: Miscellaneous - name: News description: News article endpoints x-displayName: News - name: Pairs description: Access trading pair information and rates x-displayName: Pairs - name: PaymentLinks description: Payment Links x-displayName: PaymentLinks - name: PaymentRequests description: Payment request x-displayName: PaymentRequests - name: Pledges description: Customer-authorized pledge lifecycle APIs x-displayName: Pledges - name: PriceAlerts description: Price alert management endpoints x-displayName: PriceAlerts - name: Quotes description: Handle quotes requests and responses x-displayName: Quotes - name: Recipients x-displayName: Recipients - name: Transactions x-displayName: Transactions - name: Transfers x-displayName: Transfers - name: Widget description: Widget operations x-displayName: Widget paths: /v1/customers/{id}: get: tags: - Customers summary: Get a customer by ID description: Retrieve a specific customer by their unique ID operationId: getCustomerByID parameters: - $ref: '#/components/parameters/PathParamNanoID' - $ref: '#/components/parameters/ProfileHeader' responses: '200': $ref: '#/components/responses/CustomerResponse' 4XX: $ref: '#/components/responses/CustomerError4XX' 5XX: $ref: '#/components/responses/CustomerError5XX' security: - Auth: - customers:read - api:read components: parameters: PathParamNanoID: in: path name: id required: true schema: type: string format: nanoid example: bus_123456789 x-oapi-codegen-extra-tags: validate: required|nanoid ProfileHeader: in: header name: X-BU-PROFILE-ID required: false description: User profile header schema: type: string example: BUS_YOK8tp5Zga01qOKEsqp07 responses: CustomerResponse: description: Successful response content: application/json: schema: allOf: - $ref: '#/components/schemas/BaseSchema' - type: object required: - data properties: data: $ref: '#/components/schemas/Customer' CustomerError4XX: description: Something went wrong in Customer resource content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: default: $ref: '#/components/examples/DefaultError' not_found_error: $ref: '#/components/examples/NotFoundError' unauthorized_error: $ref: '#/components/examples/UnAuthorizedError' request_validation_error: $ref: '#/components/examples/RequestValidationError' schema_validation_error: $ref: '#/components/examples/SchemaValidationError' CustomerError5XX: description: Server error when processing the customers request content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' examples: internal_server_error: $ref: '#/components/examples/InternalServerError' service_unavailable_error: $ref: '#/components/examples/ServiceUnavailableError' schemas: BaseSchema: description: General response Values type: object required: - status - message properties: status: type: string x-order: 1 x-go-type: string enum: - success - error example: success message: type: string x-order: 2 example: message for success Customer: allOf: - oneOf: - $ref: '#/components/schemas/CustomerCreateIndividual' - $ref: '#/components/schemas/CustomerBusinessBase' - type: object x-order: 1 required: - id - status - type - email - country_id - business_id - has_accepted_terms_of_service - display_currency - deposit - payout - phone - address - level - created_at - updated_at properties: id: allOf: - $ref: '#/components/schemas/NanoID' x-order: 1 business_id: allOf: - $ref: '#/components/schemas/NanoID' x-order: 2 email: allOf: - $ref: '#/components/schemas/EmailField' x-order: 3 status: type: string enum: - active - inactive - submitted - in_review - rejected x-order: 9 kyc_status: type: string enum: - pending - unverified - verified - expiry_soon - expired x-order: 9 country_id: $ref: '#/components/schemas/CountryID' type: allOf: - $ref: '#/components/schemas/BusinessCustomerType' x-order: 8 phone: allOf: - $ref: '#/components/schemas/PhoneField' x-order: 8 address: allOf: - $ref: '#/components/schemas/Address' x-order: 7 display_currency: allOf: - $ref: '#/components/schemas/Currency' x-order: 7 deposit: type: boolean description: User can deposit x-order: 8 payout: type: boolean description: User can payout x-order: 8 has_accepted_terms_of_service: type: boolean x-order: 10 rejection_reasons: type: array items: type: string x-order: 11 requirements_due: type: array items: type: string x-order: 12 future_requirements_due: type: array items: type: string x-order: 13 beneficial_owners: type: array items: type: object properties: id: type: string email: $ref: '#/components/schemas/EmailField' x-order: 14 level: type: string x-order: 15 created_at: type: string format: date-time x-order: 16 updated_at: type: string format: date-time x-order: 17 ErrorResponse: type: object required: - error properties: error: type: object required: - name - message properties: name: type: string x-order: 40 example: bad_request message: type: string example: Invalid Request fields: type: object schema: type: array items: type: object example: error: name: bad_request message: Invalid Request CustomerCreateIndividual: type: object x-order: 2 required: - first_name - last_name description: Individual name requirements properties: first_name: $ref: '#/components/schemas/NameField' middle_name: $ref: '#/components/schemas/NullableNameField' last_name: $ref: '#/components/schemas/NameField' CustomerBusinessBase: type: object required: - business_name - business_industry - business_incorporation_date description: Business name requirements x-order: 2 properties: business_name: type: string description: Name of the business maxLength: 100 x-oapi-codegen-extra-tags: validate: required|maxlen:100 filter: trim|lower|ucFirst business_industry: type: string minLength: 16 maxLength: 24 description: ID Industry or sector the business operates in business_incorporation_date: type: string format: date description: Business incorporation date NanoID: type: string x-order: 2 example: bus_123456789 format: nanoid description: A valid id x-oapi-codegen-extra-tags: validate: required|nanoid EmailField: type: string example: bCnW7@example.com format: email description: A valid email address x-oapi-codegen-extra-tags: validate: required|email|check_temp_email filter: trim|lower x-go-type: string CountryID: type: string example: NG format: alpha2 description: A valid country id minLength: 2 maxLength: 2 x-oapi-codegen-extra-tags: validate: alpha2 BusinessCustomerType: type: string enum: - individual - business PhoneField: type: string example: '+2348012345678' format: phone description: A valid phone number. format `{{calling_code}}{{number}}` x-oapi-codegen-extra-tags: validate: phone filter: phone mapstructure: phone_number,omitempty Address: type: object description: Address of the business. required: - address_line_1 - country_id properties: city: type: string example: Lekki x-oapi-codegen-extra-tags: mapstructure: city state: type: string example: Lagos x-oapi-codegen-extra-tags: mapstructure: state county: type: string example: Mombasa x-oapi-codegen-extra-tags: mapstructure: county country_id: type: string example: NG format: alpha2 description: A valid country id x-oapi-codegen-extra-tags: validate: alpha2 mapstructure: country_id address_line_1: type: string example: RT Lawal x-oapi-codegen-extra-tags: mapstructure: address_line_1 address_line_2: type: string example: '' x-oapi-codegen-extra-tags: mapstructure: address_line_2 province: type: string example: province x-oapi-codegen-extra-tags: mapstructure: province postal_code: type: string example: '12345' x-oapi-codegen-extra-tags: mapstructure: postal_code Currency: type: string x-order: 20 example: BTC format: string maxLength: 10 minLength: 1 description: A valid currency x-oapi-codegen-extra-tags: validate: required|min_len:1|max_len:10 filter: trim|upper NameField: type: string example: John description: A valid name NullableNameField: type: string nullable: true description: A field representing a name that can be null or absent. example: Smith examples: DefaultError: description: Default error value: error: name: bad_request message: Invalid request NotFoundError: description: Not Found error value: error: name: resource_not_found message: Resource Not Found UnAuthorizedError: description: Unauthorized Error value: error: name: unauthorized message: Unauthorized request RequestValidationError: description: Request Validation error example value: error: name: request_validation message: Validation error fields: field1: - reason: One of target and source amount must be set field2: - reason: One of target and source amount must be set SchemaValidationError: description: Schema validation error example value: error: name: schema_validation message: Error Validating Requests schema: - reason: >- The request body is defined as an object. However, it does not meet the schema requirements of the specification fix: >- Ensure that the object being submitted, matches the schema correctly schema_validation_error: - 'minLength: got 3, want 12' InternalServerError: description: Internal Server Error value: error: name: internal_server_error message: Internal Server Error ServiceUnavailableError: description: Service Unavailable Error value: error: name: service_unavailable message: Service Unavailable securitySchemes: Auth: type: http scheme: bearer description: Bearer Authentication ````